Door.



E. H. McCLOUD.

DOOR.

APPLICATION FILED MAR. 20. 1916.

- Patented Nov. 19, 1918.

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APPLICATION FILED MAR. 20. I916.

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EDWARD H. MCCLOUD, F COLUMBUS, OHIO.

DOOR.

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Specification of Letters Patent.

Patented Nov. 19, 1918.

Application filed March 20, 1916. Serial No. 85,258.

To all whom it may concern Be it known that I, EDW'ARD H. McCLoUn, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Doors, of which the following is a specification.

This invention relates to the type of door that includes two sections, one of which is slid up in front of the other, the two sections being then tilted together from the door opening to horizontal position, and the objeot of the invention is to provide a simplifled and improved construction of this type what is ordinarily the inner side.

Fig. 2 is a vertical section on the line III-III Fig. 1 looking to the left.

Fig. 3 is a horizontal section on the line 1-1 Fig. 1.

Fig. 4 is a similar section on the line II-H Fig. 1.

In the views 5, 5 designate vertical channels or guides which are to be suitably secured to the vertical portions of the door way casing. 6 designates the lower door section or panel and 7 the upper door section or panel. The lower corners of the lower section or panel 6 are each provided with rollers 8 journaled in brackets 9; and connected with said brackets are chains or cords 30 passing upward over suitable pulleys 10 and 11 to a counter balancing weight 12. The upper corners of the lower section or panel are each also provided with a roller 13 for the purpose to be hereinafter referred to.

The upper section or panel 7 is supported by means of flanged rollers 14 journaled on bearings projecting laterally from the upper corners of that section, said rollers resting and traveling, as hereinafter described. on tracks 15 projecting horizontally from the wall. The journals of the rollers 15 are conveniently supported on brackets 18 fastened to the upper corners of the upper section. said brackets formed to constitute stops against which the lower section abuts when the latter is raised. The vertical edges of the upper section are provided with angle bars 17 having one web offset from the face of the section so as to form channels or guides in which the vertical edges of the lower section travel when that section is raised. When the lower section is raised to I the position where it substantially coincides horizontally or is opposite the upper section it is stopped by means of the stops 18 before referred to fixed to the upper portion of the upper section so that the two sections are coupled for further movement together in the same direction.

Brackets 16 secured to the wall and having curved grooves 19 are provided and so positioned that when the lower section and the wheels 13 are raised the upper rims of said grooves cause the coupled sections to be deflected outward at their upper portions.

The upper section 7 is provided at each of its upper corners with a latch pivoted at 21, said latch having an arm 22 to engage a shoulder 23 on the bracket 16 when the upper section 7 is in vertical position and a dependent arm 24 having a downwardly and outwardly inclined end 25. When the lower section is raised the bearings of the rollers 13 strike the inclined ends 25 and raise the latching arm 22 thereby releasing the upper section permitting it to be deflected outward from the wall with the lower section, the lower section being directly deflected by the engagement of the rollers 13 with the curved grooves 19. The upper wall of the groove 19 thus causes initial outward deflection of the upper portions of the coupled sections but after some considerable deflection the upper portions of the coupled sections are supported by the flanged rollers'l l on the upper section traveling on the tracks 15 which support the sections at those portions while the lower portions are supported by the chains or cords. as indicated by broken lines Fig. 2. By raising the lower portions of the coupled sections sufficiently they can be brought to substantially horizontal position. To permit the deflection of the sections at the upper portions of the channels the latter, at those portions, are cut away and made narrower as seen at 5".

The character 26 designates an endless chain running over a sprocket wheel 27, the shaft of which has a spur gear 28 to engage a spur gear 29 on the shaft of the pulley 11. By these or other familiar meansthe door. when heavy, can be conveniently opened and closed. To close the door the operation is 55o la'teii po seeiioe esoemis "Wise as be desired ''5 opening.

'orms of the pasts can Yo Lion which they 9 everai narrow pieces or moieateii by orozeii iines i ne edges oi the upggei 530211011. 1 a

means, means on the lower seeeion said last named guide, 'araeii projem 5 "from wall adjacent door opening, and means on the upper doe? see- :or supporting the deflected door sections on said track.

52. A door including, in combination, upper anci iOWBT door sections, means for actuating hem in parallel relation, guicies for iloiciine" said sections in paraiiei relation, means Ii): iatoning iiieupper section in vertical posiiion said latching means aotuaiabie by 'ihe iewer session When raised, means for stopping i'eiative paraiiel upward movement of the sections when the lower section is raised, means "for deflecting the door seotioes 1 mm the door opening in advance of the opera'zion of said siopping means, a track pro jeohing from the Waii adjacent the opening anti supporting the (1001 sections on said track when defieobeei 20m said doe? 

